Packaged film dosage unit containing a complexate

ABSTRACT

The present invention relates to packaged orally consumable film dosage units for delivery of actives into the oral cavity. In particular, the packaged pharmaceutical product contains a complexate including a complexing agent and an active, an orally consumable film for delivery of the complexate and a package for containing the orally consumable film. The package includes indicia associated therewith. The indicia identifies the complexate as the active ingredient contained in the film, which is as a regulatory approvable chemical entity. The present invention also relates to methods of labeling, pricing, marketing and satisfying governmental regulations for such packaged pharmaceutical products.

FIELD OF THE INVENTION

The present invention relates to packaged orally consumable film dosageunits that dissolve in water. The orally consumable films may containnew active ingredients for delivery into the oral cavity. The new activeingredient contained in the film may be a complexate and the package maybe labeled to indicate that such complexate is a regulatory approvablechemical entity.

BACKGROUND OF THE INVENTION

Orally consumable pharmaceutical products contain active ingredients fortreatment of a wide variety of ailments. The packaging and labeling ofsuch products are heavily regulated to protect the safety of consumers.Specifically, pharmaceutical products are labeled to provide theconsumer with accurate information as to the contents of the product.Regulatory bodies worldwide oversee safety in pharmaceutical productlabeling. In the United States, the Food and Drug Administration (“FDA”)is responsible for regulating packaging and labeling of pharmaceuticalproducts. Labeling for both prescription and over-the-counter (“OTC”)drug products are regulated by the FDA. In particular, regulationsrequire accurate identification of all active ingredients and theiramounts contained in the pharmaceutical product. For instance, for OTCproducts, actives must be listed in hierarchical order of their relativeamounts along with the concentration per unit dosage and pharmaceuticalpurpose of each.

To comply with such regulations, active ingredient information must becorrectly identified on the product labeling. Actives that are complexedwith another substance, such as a salt, form a new chemical entityhaving new and different functionality from the initial uncomplexedactive. This new chemical entity is the active ingredient that can beused in a variety of different pharmaceutical products. There is a needto properly identify this new chemical entity as the active ingredientcontained in such products. Therefore, accurate drug information can beprovided to consumers and governmental regulations can be satisfied.

SUMMARY OF THE INVENTION

The present invention provides a new packaged film product whichaccurately provides information to a user regarding the activeingredient in the film product. The active ingredients are new chemicalentities that have previously not been recognized as such.

In accordance with some embodiments of the present invention, there isprovided a packaged pharmaceutical product including: a complexateincluding a complexing agent and an active; an orally consumable filmfor delivery of the complexate; and a package for containing the orallyconsumable film, the package including indicia associated therewithidentifying the complexate as a regulatory approvable chemical entity.

In some embodiments, there is provided a method of labeling a packagedpharmaceutical product in a manner that is consistent with governmentaldrug regulations, including the steps of:

(a) providing a packaged pharmaceutical product containing:

-   -   (i) a complexate including a complexing agent and a        pharmaceutical active;    -   (ii) an orally consumable film for delivery of the complexate;        and    -   (iii) a package for containing the orally consumable film; and

(b) adding indicia to the package, the indicia including a list ofactive ingredients contained in the orally consumable film and a list ofinactive ingredients contained in the orally consumable film, where thecomplexate is listed as an active ingredient.

Some other embodiments provide a method of adjusting the sales price ofa packaged orally consumable film product, which includes the steps of:

(a) selecting an orally consumable film product including apharmaceutical active, the product having a manufacturing cost;

(b) selecting a complexing agent for use with the pharmaceutical activeto form a complexate;

(c) estimating the cost of purchasing the complexing agent from asupplier;

(d) estimating the cost of manufacturing the complexate;

(e) determining the change in manufacturing cost of the orallyconsumable film product based on the additional cost estimates of steps(c) and (d); and adjusting the sales price of the product based on thechange in manufacturing cost.

In some embodiments, there is provided a method of disseminatingaccurate drug information to consumers of a packaged pharmaceuticalproduct, which includes the steps of:

(a) providing a packaged pharmaceutical product containing:

-   -   (i) a complexate including a complexing agent and a        pharmaceutical active;    -   (ii) an orally consumable film for delivery of the complexate;        and    -   (iii) a package for containing the orally consumable film;

(b) providing indicia identifying the complexate as an active ingredientcontained in the packaged pharmaceutical product; and

(c) exposing consumers to the indicia, thereby providing accurateinformation as to the active ingredient contained in the packagedpharmaceutical product.

Some embodiments provide a method of marketing an orally consumable filmproduct containing a complexate as the active ingredient to consumers,which includes the steps of:

(a) identifying a first pharmaceutical product containing an active thathas been marketed to consumers as an effective pharmaceutical product;

(b) providing a second pharmaceutical product including:

-   -   (i) a complexate including a complexing agent and the active of        step (a); and    -   (ii) an orally consumable film for delivery of the complexate;

(c) educating consumers that the complexate contained in the secondpharmaceutical product provides the same effectiveness as the activecontained in the first pharmaceutical product; and

(d) marketing the second pharmaceutical product to consumers.

Some other embodiments provide a method of developing a sales price fora packaged orally consumable film product including a complexate as theactive ingredient, which includes the steps of:

(a) selecting a pharmaceutical active and complexing agent to form thecomplexate included in the orally consumable film;

(b) estimating the cost of purchasing the complexing agent from asupplier;

(c) estimating the cost of purchasing the pharmaceutical active from asupplier;

(d) estimating the cost of manufacturing the complexate from thepharmaceutical active and the complexing agent;

(e) estimating the cost of producing and packaging the orally consumablefilm including the complexate;

(f) estimating the aggregate cost of safety and efficacy tests performedfor the pharmaceutical active and the complexing agent individually;

(g) determining whether additional safety and efficacy tests for thecomplexate are required;

(h) estimating the cost associated with the additional safety andefficacy tests of step (g);

(i) adding the costs of the preceding steps to develop an estimatedtotal manufacturing cost; and

(j) setting the sales price based on the estimated total manufacturingcost of the packaged orally consumable film product.

In some embodiments, there is provided a method of satisfying drugregulations promulgated by a regulatory body for an orally consumablefilm including a complexate as the active ingredient, the complexateincluding a complexing agent and a pharmaceutical active, which includesthe steps of:

(a) submitting safety and efficacy test results for the complexing agentand safety and efficacy test results for the pharmaceutical active tothe regulatory body;

(b) determining whether additional safety and efficacy tests for thecomplexate are required by the regulatory body;

(c) conducting the safety and efficacy tests of step (b); and

(d) submitting the results of the safety and efficacy tests of step (c)to the regulatory body to satisfy the drug regulations of the regulatorybody for the orally consumable film product.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side elevation view of a packaged pharmaceutical product inaccordance with some embodiments of the present invention.

FIG. 2 is a side elevation view of a pouch containing an orallyconsumable film in accordance with some embodiments of the presentinvention.

FIG. 3 is a topside view of a cassette containing a plurality of orallyconsumable films in accordance with some embodiments of the presentinvention.

FIG. 4 is a topside view of an orally consumable film strip havingindicia embossed or printed on its surface in accordance with someembodiments of the invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to packaged pharmaceutical products thatcan be commercially marketed and sold to consumers. The packagedpharmaceutical products appropriately identify the active ingredientcontained therein as an active that has obtained regulatory approval asa new chemical entity. More specifically, the packaged pharmaceuticalproducts are orally consumable films, which rapidly dissolve in water.The orally consumable films include an active ingredient for deliveryinto the oral cavity. The active ingredient contained in the film is acomplexate, which has new and different functionality over the initialuncomplexed active, as well as new clinical advantages.

A “complexate” is a chemical entity that is formed by a chemicalcomplex, association or interaction between an active, such as a chargedactive, and a complexing agent, such as an acidic or basic resin. Theresulting material formed from these two components is referred toherein as a “complexate”. The complexate is a distinct chemical entityover the initial uncomplexed active. This chemical entity exhibitsdifferent functionality and offers new clinical advantages over theinitial active. Furthermore, the complexate is a new chemical entity forpurposes of FDA regulatory approval. For instance, if the complexate isconsidered a new chemical entity by the FDA, regulatory approval for useof the complexate as an active ingredient in orally consumable filmproducts would be required by the FDA. The package of the orallyconsumable film is labeled to reflect that this complexate is one of theactive ingredients contained in the product, rather than merely listingthe initial uncomplexed active as the active ingredient. Therefore, theproduct packaging provides accurate disclosure information to consumersas to the active ingredient contained in the product.

The package containing the orally consumable film may be anyconventional packaging material used for pharmaceutical products. Forexample, the package may be, without limitation, a pouch, box, cassette,blister pack, bag, or the like.

The package containing the film bears indicia thereon. The indiciaprovides information about the product ingredients to the consumer. Inthe pharmaceutical context, this information is extremely important toconsumers who select products based on the active ingredients containedtherein. Moreover, as discussed above, the listing of actives containedin pharmaceutical products is regulated by the FDA. The indicia on thepackage includes a list of active ingredients contained in the orallyconsumable film. The indicia identifies the complexate included in theorally consumable film as an active ingredient contained therein.Because the complexate is a regulatory approvable chemical entity foruse in pharmaceutical products, it is appropriately identified as anactive ingredient on the product indicia. Additional indicia also mayinclude a list of inactive ingredients contained in the orallyconsumable film.

The indicia included on the packaged product may take a wide variationof forms, such as labels, symbols, bar codes, patterns and other meansof communicating information. One preferred indicia is a label. Thelabel or other indicia may be located on or affixed to any packagingcomponent or the product per se. Any conventional means for affixinglabels to a product package may be employed. For instance, as shown inFIG. 1, the packaged pharmaceutical product 10 may include multiple setsof indicia 100 and 200. The indicia of each set may be different. Forexample, the first indicia 100 may include a listing of activeingredients included in the orally consumable film contained in thepackage 10. The second indicia 200 may include a listing of inactiveingredients included in the orally consumable film contained in thepackage 10. The orally consumable film housed inside the package 10includes a complexate. As mentioned above, the complexate is a chemicalentity formed from a complexing agent and an active. Accordingly, thecomplexate itself is the active ingredient contained in the orallyconsumable film. The complexate as a chemical entity itself is listed inthe indicia 100 as an active ingredient contained in the film.Therefore, the indicia appropriately conveys to the consumer that thecomplexate is one of the active ingredients contained in the orallyconsumable film.

In another embodiment shown in FIG. 2, for example, an orally consumablefilm 300 including a complexate is packaged in a pouch 20. The pouch 20has top and bottom layers and may be sealed along the perimeter. Thepouch may be sealed by heat sealing or with an adhesive, such as apressure-sensitive adhesive. The top and bottom layers may be separatedto allow for removal of the film 300 housed inside the pouch 20. Theoutside of the pouch, on the bottom and/or top layer, may includeindicia 100 listing the active ingredients contained in the film. Thecomplexate contained in the film is included in this listing of activeingredients. In such embodiments, therefore, film dosage units arepackaged individually and each individual pouch provides the consumerwith appropriate information as to the active ingredients contained inthe film product.

In some other embodiments, a plurality of orally consumable films may behoused inside a cassette. For example, as shown in FIG. 3, a cassette 30may contain a plurality of stacked orally consumable films 300. Thefilms 300 include a complexate as an active ingredient. The cassette 30may include two different sets of indicia 100 and 200 on the outersurface thereof. As described above, indicia 100 includes a listing ofactive ingredients included in the orally consumable films 300. Indicia200 includes a listing of inactive ingredients included in the orallyconsumable films 300. The complexate included in the orally consumablefilms 300 is included in the list of active ingredients in indicia 100.The indicia 100 and 200 appropriately indicate to consumers the activeand inactive ingredients contained in the product.

In another embodiment, the indicia indicating the complexate as anactive ingredient may be positioned on the consumable film itself, suchas by embossing, printing, stamping or other means. FIG. 4 shows a topview of an orally consumable film strip 40, with indicia 400 printed orembossed on its surface. The indicia includes identification of thecomplexate as the active ingredient.

It should be understood that any type of packaging may be used to housethe orally consumable films and convey the information regarding theidentification of the complexate as an active ingredient. Suitableorally consumable films and complexates for use in the packagedpharmaceutical products will be described in more detail below.

Orally Consumable Films

As described above, the packaged pharmaceutical products describedherein include an orally consumable film for delivery of an activeingredient. The orally consumable films are fast-dissolving in the oralcavity and particularly suitable for delivery of actives. The activeingredient delivered by the films described herein is a complexate.

The films used in the packaged pharmaceutical products may be producedby a combination of at least one polymer and a polar solvent, optionallyincluding other fillers known in the art. The solvent may be water, apolar organic solvent including, but not limited to, ethanol,isopropanol, acetone, methylene chloride, or any combination thereof.The film may be prepared by utilizing a selected casting or depositionmethod and a controlled drying process. Such processes are described inmore detail in commonly assigned U.S. application Ser. No. 10/074,272,filed on Feb. 14, 2002, and published as U.S. Patent Publication No.2003/0107149 A1, the contents of which are incorporated herein byreference in their entirety. Alternatively, the films may be extruded asdescribed in commonly assigned U.S. application Ser. No. 10/856,176,filed on May 28, 2004, and published as U.S. Patent Publication No.2005/0037055 A1, the contents of which are incorporated herein byreference in their entirety.

The polymer included in the films may be water soluble, water swellable,water insoluble, or a combination of one or more either water soluble,water swellable or water insoluble polymers. The polymer may includecellulose or a cellulose derivative. Specific examples of useful watersoluble polymers include, but are not limited to, polyethylene oxide,pullulan, hydroxypropylmethyl cellulose, hydroxyethyl cellulose,hydroxypropyl cellulose, polyvinyl pyrrolidone, carboxymethyl cellulose,polyvinyl alcohol, sodium alginate, polyethylene glycol, xanthan gum,tragancanth gum, guar gum, acacia gum, arabic gum, polyacrylic acid,methylmethacrylate copolymer, carboxyvinyl copolymers, starch, gelatin,and combinations thereof. Specific examples of useful water insolublepolymers include, but are not limited to, ethyl cellulose, hydroxypropylethyl cellulose, cellulose acetate phthalate, hydroxypropyl methylcellulose phthalate and combinations thereof.

As used herein the phrase “water soluble polymer” and variants thereofrefer to a polymer that is at least partially soluble in water, anddesirably fully or predominantly soluble in water, or absorbs water.Polymers that absorb water are often referred to as being waterswellable polymers. The materials useful with the present invention maybe water soluble or water swellable at room temperature and othertemperatures, such as temperatures exceeding room temperature. Moreover,the materials may be water soluble or water swellable at pressures lessthan atmospheric pressure. Desirably, the water soluble polymers arewater soluble or water swellable having at least 20 percent by weightwater uptake. Water swellable polymers having a 25 or greater percent byweight water uptake are also useful. In some embodiments, films formedfrom such water soluble polymers may be sufficiently water soluble to bedissolvable upon contact with bodily fluids.

Other polymers useful for incorporation into the films includebiodegradable polymers, copolymers, block polymers and combinationsthereof. Among the known useful polymers or polymer classes which meetthe above criteria are: poly(glycolic acid) (PGA), poly(lactic acid)(PLA), polydioxanoes, polyoxalates, poly(α-esters), polyanhydrides,polyacetates, polycaprolactones, poly(orthoesters), polyamino acids,polyaminocarbonates, polyurethanes, polycarbonates, polyamides,poly(alkyl cyanoacrylates), and mixtures and copolymers thereof.Additional useful polymers include, stereopolymers of L- and D-lacticacid, copolymers of bis(p-carboxyphenoxy) propane acid and sebacic acid,sebacic acid copolymers, copolymers of caprolactone, poly(lacticacid)/poly(glycolic acid)/polyethyleneglycol copolymers, copolymers ofpolyurethane and (poly(lactic acid), copolymers of polyurethane andpoly(lactic acid), copolymers of α-amino acids, copolymers of α-aminoacids and caproic acid, copolymers of α-benzyl glutamate andpolyethylene glycol, copolymers of succinate and poly(glycols),polyphosphazene, polyhydroxy-alkanoates and mixtures thereof. Binary andternary systems are contemplated.

Other specific polymers useful include those marketed under the Medisorband Biodel trademarks. The Medisorb materials are marketed by the DupontCompany of Wilmington, Del. and are generically identified as a“lactide/glycolide co-polymer” containing “propanoic acid,2-hydroxy-polymer with hydroxy-polymer with hydroxyacetic acid.” Foursuch polymers include lactide/glycolide 100 L, believed to be 100%lactide having a melting point within the range of 338°-347° F.(170°-175° C.); lactide/glycolide 100 L, believed to be 100% glycolidehaving a melting point within the range of 437°-455° F. (225°-235° C.);lactide/glycolide 85/15, believed to be 85% lactide and 15% glycolidewith a melting point within the range of 338°-347° F. (170°-175° C.);and lactide/glycolide 50/50, believed to be a copolymer of 50% lactideand 50% glycolide with a melting point within the range of 338°-347° F.(170°-175° C.).

The Biodel materials represent a family of various polyanhydrides whichdiffer chemically.

Although a variety of different polymers may be used, it is desired toselect polymers that provide mucoadhesive properties to the film, aswell as a desired dissolution and/or disintegration rate. In particular,the time period for which it is desired to maintain the film in contactwith the mucosal tissue depends on the type of active contained in thesecond delivery vehicle. Some actives may only require a few minutes fordelivery through the mucosal tissue, whereas other actives may requireup to several hours or even longer. Accordingly, in some embodiments,one or more water-soluble polymers, as described above, may be used toform the film. In other embodiments, however, it may be desirable to usecombinations of water-soluble polymers and polymers that arewater-swellable, water insoluble and/or biodegradable, as providedabove. The inclusion of one or more polymers that are water-swellable,water insoluble and/or biodegradable may provide films with slowerdissolution or disintegration rates than films formed from water-solublepolymers alone. As such, the film may adhere to the mucosal tissue forlonger periods or time, such as up to several hours, which may bedesirable for delivery of certain active components.

For instance, in some embodiments, the films may include polyethyleneoxide alone or in combination with a second polymer component. Thesecond polymer may be another water-soluble polymer, a water swellablepolymer, a water insoluble polymer, a biodegradable polymer or anycombination thereof. Suitable water-soluble polymers include, withoutlimitation, any of those provided above. In some embodiments, thewater-soluble polymer may include hydrophilic cellulosic polymers, suchas hydroxypropyl cellulose and/or hydroxypropylmethyl cellulose. Inaccordance with some embodiments, polyethylene oxide may range fromabout 20% to 100% by weight in the polymer component, more specificallyabout 30% to about 70% by weight, and even more specifically about 40%to about 60% by weight. In some embodiments, one or morewater-swellable, water insoluble and/or biodegradable polymers also maybe included in the polyethylene oxide-based film. Any of thewater-swellable, water insoluble or biodegradable polymers providedabove may be employed. The second polymer component may be employed inamounts of about 0% to about 80% by weight in the polymer component,more specifically about 30% to about 70% by weight, and even morespecifically about 40% to about 60% by weight.

The molecular weight of the polyethylene oxide also may be varied. Insome embodiments, high molecular weight polyethylene oxide, such asabout 4 million, may be desired to increase mucoadhesivity of the film.In some other embodiments, the molecular weight may range from about100,000 to 900,000, more specifically from about 100,000 to 600,000, andeven more specifically from about 100,000 to 300,000. In someembodiments, it may be desirable to combine high molecular weight(600,000 to 900,000) with low molecular weight (100,000 to 300,000)polyethylene oxide in the polymer component.

A variety of optional components and fillers also may be added to thefilms. These may include, without limitation: surfactants; plasticizers;polyalcohols; anti-foaming agents, such as silicone-containingcompounds, which promote a smoother film surface by releasing oxygenfrom the film; thermo-setting gels such as pectin, carageenan, andgelatin, which help in maintaining the dispersion of components;inclusion compounds, such as cyclodextrins and caged molecules; coloringagents; and flavors. In some embodiments, an active component may beincluded in the film, in addition to the active component contained inthe second delivery vehicle. Suitable active components for use in thefilm include any of those described below for use in the second deliveryvehicle. The active contained in the film may be the same as ordifferent from the active contained in the second delivery vehicle.

Examples of classes of additives include excipients, lubricants,buffering agents, stabilizers, blowing agents, pigments, coloringagents, fillers, bulking agents, sweetening agents, flavoring agents,fragrances, release modifiers, adjuvants, plasticizers, flowaccelerators, mold release agents, polyols, granulating agents,diluents, binders, buffers, absorbents, glidants, adhesives,anti-adherents, acidulants, softeners, resins, demulcents, solvents,surfactants, emulsifiers, elastomers and mixtures thereof. Theseadditives may be added with the active ingredient(s).

Useful additives include, for example, gelatin, vegetable proteins suchas sunflower protein, soybean proteins, cotton seed proteins, peanutproteins, grape seed proteins, whey proteins, whey protein isolates,blood proteins, egg proteins, acrylated proteins, water-solublepolysaccharides such as alginates, carrageenans, guar gum, agar-agar,xanthan gum, gellan gum, gum arabic and related gums (gum ghatti, gumkaraya, gum tragancanth), pectin, water-soluble derivatives ofcellulose: alkylcelluloses hydroxyalkylcelluloses andhydroxyalkylalkylcelluloses, such as methylcelulose,hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose,hydroxyethylmethylcellulose, hydroxypropylmethylcellulose,hydroxybutylmethylcellulose, cellulose esters and hydroxyalkylcelluloseesters such as cellulose acetate phthalate (CAP),hydroxypropylmethylcellulose (HPMC); carboxyalkylcelluloses,carboxyalkylalkylcelluloses, carboxyalkylcellulose esters such ascarboxymethylcellulose and their alkali metal salts; water-solublesynthetic polymers such as polyacrylic acids and polyacrylic acidesters, polymethacrylic acids and polymethacrylic acid esters,polyvinylacetates, polyvinylalcohols, polyvinylacetatephthalates (PVAP),polyvinylpyrrolidone (PVP), PVY/vinyl acetate copolymer, andpolycrotonic acids; also suitable are phthalated gelatin, gelatinsuccinate, crosslinked gelatin, shellac, water soluble chemicalderivatives of starch, cationically modified acrylates and methacrylatespossessing, for example, a tertiary or quaternary amino group, such asthe diethylaminoethyl group, which may be quaternized if desired; andother similar polymers.

Such extenders may optionally be added in any desired amount desirablywithin the range of up to about 80%, desirably about 3% to 50% and moredesirably within the range of 3% to 20% based on the weight of all filmcomponents.

Further additives may be inorganic fillers, such as the oxides ofmagnesium aluminum, silicon, titanium, etc. desirably in a concentrationrange of about 0.02% to about 3% by weight and desirably about 0.02% toabout 1% based on the weight of all film components.

Further examples of additives are plasticizers which includepolyalkylene oxides, such as polyethylene glycols, polypropyleneglycols, polyethylene-propylene glycols, organic plasticizers with lowmolecular weights, such as glycerol, glycerol monoacetate, diacetate ortriacetate, triacetin, polysorbate, cetyl alcohol, propylene glycol,sorbitol, sodium diethylsulfosuccinate, triethyl citrate, tributylcitrate, and the like, added in concentrations ranging from about 0.5%to about 30%, and desirably ranging from about 0.5% to about 20% basedon the weight of the polymer.

There may further be added compounds to improve the flow properties ofthe starch material such as animal or vegetable fats, desirably in theirhydrogenated form, especially those which are solid at room temperature.These fats desirably have a melting point of 50° C. or higher. Preferredare tri-glycerides with C₁₂-, C₁₄-, C₁₆-, C₁₈-, C₂₀- and C₂₂-fattyacids. These fats can be added alone without adding extenders orplasticizers and can be advantageously added alone or together withmono- and/or di-glycerides or phosphatides, especially lecithin. Themono- and di-glycerides are desirably derived from the types of fatsdescribed above, i.e. with C₁₂-, C₁₄-, C₁₆-, C₁₈-, C₂₀- and C₂₂-fattyacids.

The total amounts used of the fats, mono-, di-glycerides and/orlecithins are up to about 5% and preferably within the range of about0.5% to about 2% by weight of the total film composition.

It further may be useful to add silicon dioxide, calcium silicate, ortitanium dioxide in a concentration of about 0.02% to about 1% by weightof the total composition. These compounds act as texturizing agents.

Lecithin is one surface active agent for use in the films describedherein. Lecithin can be included in the feedstock in an amount of fromabout 0.25% to about 2.00% by weight. Other surface active agents, i.e.surfactants, include, but are not limited to, cetyl alcohol, sodiumlauryl sulfate, the Spans™ and Tweens™ which are commercially availablefrom ICI Americas, Inc. Ethoxylated oils, including ethoxylated castoroils, such as Cremophor® EL which is commercially available from BASF,are also useful. Carbowax™ is yet another modifier which is very usefulin the present invention. Tweens™ or combinations of surface activeagents may be used to achieve the desired hydrophilic-lipophilic balance(“HLB”). The present invention, however, does not require the use of asurfactant and films or film-forming compositions of the presentinvention may be essentially free of a surfactant while still providingthe desirable uniformity features of the present invention.

Other ingredients include binders which contribute to the ease offormation and general quality of the films. Non-limiting examples ofbinders include starches, pregelatinize starches, gelatin,polyvinylpyrrolidone, methylcellulose, sodium carboxymethylcellulose,ethylcellulose, polyacrylamides, polyvinyloxoazolidone, andpolyvinylalcohols.

Further potential additives include solubility enhancing agents, such assubstances that form inclusion compounds with active components. Suchagents may be useful in improving the properties of very insolubleand/or unstable actives. In general, these substances aredoughnut-shaped molecules with hydrophobic internal cavities andhydrophilic exteriors. Insoluble and/or instable actives may fit withinthe hydrophobic cavity, thereby producing an inclusion complex, which issoluble in water. Accordingly, the formation of the inclusion complexpermits very insoluble and/or instable actives to be dissolved in water.A particularly desirable example of such agents are cyclodextrins, whichare cyclic carbohydrates derived from starch. Other similar substances,however, are considered well within the scope of the present invention.

Suitable coloring agents include food, drug and cosmetic colors (FD&C),drug and cosmetic colors (D&C), or external drug and cosmetic colors(Ext. D&C). These colors are dyes, their corresponding lakes, andcertain natural and derived colorants. Lakes are dyes absorbed onaluminum hydroxide.

Other examples of coloring agents include known azo dyes, organic orinorganic pigments, or coloring agents of natural origin. Inorganicpigments are preferred, such as the oxides or iron or titanium, theseoxides, being added in concentrations ranging from about 0.001 to about10%, and preferably about 0.5 to about 3%, based on the weight of allthe components.

Flavors may be chosen from natural and synthetic flavoring liquids. Anillustrative list of such agents includes volatile oils, syntheticflavor oils, flavoring aromatics, oils, liquids, oleoresins or extractsderived from plants, leaves, flowers, fruits, stems and combinationsthereof. A non-limiting representative list of examples includes mintoils, cocoa, and citrus oils such as lemon, orange, grape, lime andgrapefruit and fruit essences including apple, pear, peach, grape,strawberry, raspberry, cherry, plum, pineapple, apricot or other fruitflavors.

Other useful flavorings include aldehydes and esters such asbenzaldehyde (cherry, almond), citral i.e., alphacitral (lemon, lime),neral, i.e., beta-citral (lemon, lime), decanal (orange, lemon),aldehyde C-8 (citrus fruits), aldehyde C-9 (citrus fruits), aldehydeC-12 (citrus fruits), tolyl aldehyde (cherry, almond),2,6-dimethyloctanol (green fruit), and 2-dodecenal (citrus, mandarin),combinations thereof and the like.

The sweeteners may be chosen from the following non-limiting list:glucose (corn syrup), dextrose, invert sugar, fructose, and combinationsthereof; saccharin and its various salts such as the sodium salt;dipeptide sweeteners such as aspartame; dihydrochalcone compounds,glycyrrhizin; Stevia Rebaudiana (Stevioside); chloro derivatives ofsucrose such as sucralose; sugar alcohols such as sorbitol, mannitol,xylitol, and the like. Also contemplated are hydrogenated starchhydrolysates and the synthetic sweetener3,6-dihydro-6-methyl-1-1-1,2,3-oxathiazin-4-one-2,2-dioxide,particularly the potassium salt (acesulfame-K), and sodium and calciumsalts thereof, and natural intensive sweeteners, such as Lo Han Kuo.Other sweeteners may also be used.

Anti-foaming and/or de-foaming components may also be used with thefilms. These components aid in the removal of air, such as entrappedair, from the film-forming compositions. Such entrapped air may lead tonon-uniform films. Simethicone is one particularly useful anti-foamingand/or de-foaming agent. The present invention, however, is not solimited and other anti-foam and/or de-foaming agents may suitable beused.

As a related matter, simethicone and related agents may be employed fordensification purposes. More specifically, such agents may facilitatethe removal of voids, air, moisture, and similar undesired components,thereby providing denser, and thus more uniform films. Agents orcomponents which perform this function can be referred to asdensification or densifying agents. As described above, entrapped air orundesired components may lead to non-uniform films.

Simethicone is generally used in the medical field as a treatment forgas or colic in babies. Simethicone is a mixture of fully methylatedlinear siloxane polymers containing repeating units ofpolydimethylsiloxane which is stabilized with trimethylsiloxyend-blocking unites, and silicon dioxide. It usually contains 90.5-99%polymethylsiloxane and 4-7% silicon dioxide. The mixture is a gray,translucent, viscous fluid which is insoluble in water.

When dispersed in water, simethicone will spread across the surface,forming a thin film of low surface tension. In this way, simethiconereduces the surface tension of bubbles air located in the solution, suchas foam bubbles, causing their collapse. The function of simethiconemimics the dual action of oil and alcohol in water. For example, in anoily solution any trapped air bubbles will ascend to the surface anddissipate more quickly and easily, because an oily liquid has a lighterdensity compared to a water solution. On the other hand, analcohol/water mixture is known to lower water density as well as lowerthe water's surface tension. So, any air bubbles trapped inside thismixture solution will also be easily dissipated. Simethicone solutionprovides both of these advantages. It lowers the surface energy of anyair bubbles that trapped inside the aqueous solution, as well aslowering the surface tension of the aqueous solution. As the result ofthis unique functionality, simethicone has an excellent anti-foamingproperty that can be used for physiological processes (anti-gas instomach) as well as any for external processes that require the removalof air bubbles from a product.

In order to prevent the formation of air bubbles in the films, themixing step can be performed under vacuum. However, as soon as themixing step is completed, and the film solution is returned to thenormal atmosphere condition, air will be re-introduced into or contactedwith the mixture. In many cases, tiny air bubbles will be again trappedinside this polymeric viscous solution. The incorporation of simethiconeinto the film-forming composition either substantially reduces oreliminates the formation of air bubbles.

Simethicone may be added to the film-forming mixture as an anti-foamingagent in an amount from about 0.01 weight percent to about 5.0 weightpercent, more desirably from about 0.05 weight percent to about 2.5weight percent, and most desirably from about 0.1 weight percent toabout 1.0 weight percent.

Any other optional components described in commonly assigned U.S.application Ser. Nos. 10/074,272 and 10/856,176, referred to above, alsomay be included in the films described herein.

Complexates

In accordance with the present invention, the active ingredient includedin the film is a complexate, which includes a complexing agent and anactive. The complexate is a different chemical entity from the initialuncomplexed active. In some embodiments, for instance, the initialactive is a charged active, which allows it to complex, interact orassociate with an oppositely charged complexing agent, the formation ofwhich is identifiable as a new active ingredient, i.e., a complexate.

The complexing agent may be any agent capable of chemically forming acomplex, association or interaction with an active. For instance, thecomplexing agent may be an anionic complexing agent, which may reactwith an active having a cationic charge to form a complexate.Alternatively, the complexing agent may be a cationic complexing agent,which may react with an active having an anionic charge to form acomplexate. In some embodiments, the complexing agent may be amulti-valent salt, which also may react with a charged active to form acomplexate. In some embodiments, the complexing agent may be azwitterion, which is a molecule carrying both a positive and a negativecharge, and thus, can form a complex with a charged active. In someembodiments, the complexing agent may be an adsorbant or an absorbantmaterial, such as, trimagnesium silicate or other absorbing silicates.

More specifically, in some embodiments, the complexing agent may be anion exchange resin. Ion exchange resins may serve several differentfunctions in pharmaceutical applications, including extended- orcontrolled-release, taste-masking, and improving the stability ofactives. Ion exchange resins generally are insoluble macromolecules orpolyelectrolytes that have electrically charged sites at which one ionmay replace another ion. Cation-exchange resins have fixedelectronegative charges that interact with counterions having theopposite, or positive, charge. Cation-exchange resins exchangepositively charged cations. Anion-exchange resins have electropositivecharges that interact with counterions having the opposite, or negative,charge. Anion-exchange resins exchange negatively charged anions.

In particular, an ion exchange resin for use herein may be awater-insoluble organic or inorganic matrix material having covalentlybound functional groups that are ionic or capable of being ionized underappropriate conditions. The organic matrix may be synthetic (e.g.,polymers or copolymers or acrylic acid, methacrylic acid, sulfonatedstyrene or sulfonated divinylbenzene) or partially synthetic (e.g.,modified cellulose or dextrans). The inorganic matrix may be, forexample, silica gel modified by the addition of ionic groups. Most ionexchange resins are cross-linked by a crosslinking agent, such asdivinylbenzene.

Ion exchange resins for use herein may be categorized into four maintypes depending on their functional groups: strongly acidic (e.g.,sulfonic acid groups); strongly basic (e.g., trimethylammonium groups);weakly acidic (e.g., carboxylic acid groups); and weakly basic (e.g.,amino groups).

In some embodiments, for instance, an acidic resin may be employed. Theacidic resin may be combined with a basic drug to form a complexate.Examples of acidic resins that can be combined with basic drugs include,but are not limited to, partially neutralized poly(acrylic acid),crosslinked acrylic acid copolymers (such as Indion 414), sodiumpolystyrene sulfonate (such as Amberlite IRP-69), copolymers ofmethyacrylic acid crosslinked with divinylbenzene (such as AmberliteIRP-64), and polacrilin potassium.

Examples of basic drugs that can be combined with any of the acidicresins set forth above include, but are not limited to, levobetaxololhyrdrochloride, roxithromycin, dicyclomine hydrochloride, montelukastsodium, dextromethorphan hydrobromide, diphenhydramine hydrochloride,orbifloxacin, ciprofloxacin, enoxacin, grepafloxacin, levofloxacin,lomefloxacin, nalidixic acid, acycloguanosine, tinidazole, deferiprone,cimetidine, oxycodone, remacemide, nicotine, morphine, hydrocodone,rivastigmine, propanolol, betaxolol, chlorpheniramine, and paroxetine.

In some embodiments, a basic resin may be employed. The basic resin maybe combined with an acidic drug to form a complexate. Examples of basicresins that can be used to form complexates include, but are not limitedto, polyvinylpyrrolidone, polylysine, polyarginine, and polyhistidine.

Examples of acidic drugs that can be combined with any of the basicresins set forth above include, but are not limited to, nicotinic acid,mefanamic acid, indomethacin, diclofenac, repaglinide, ketoprofen,ibuprofen, valproic acid, lansoprazole, ambroxol, omeprazole,acetaminophen, topiramate, amphotericin B, and carbemazepime.

In some other embodiments, the complexing agent may rely on weak bondingforces, such as Van der Waals forces or hydrogen bonding, to form acomplexate with an initial active. Such complexing agents may includecaged molecules, such as cyclodextrins. Cyclodextrins generally arecyclic oligosaccharides composed of alpha-D-glucopyranose units. Commoncyclodextrins include alpha-, beta- and gamma-cyclodextrins, whichcontain 6, 7 and 8 glucose units, respectively. Cyclodextrins have atoroidal shape with a generally hydrophobic interior cavity and agenerally hydrophilic exterior, which imparts water-solubility to themolecule. This characteristic allows cyclodextrins to form inclusioncomplexes, i.e., host-guest complexes, with hydrophobic molecules toincrease the water-solubility thereof. More specifically, guestmolecules interact with the interior cavity of the cyclodextrin tobecome entrapped and form a stable association therewith. Due to thehydrophilic exterior of the cyclodextrin, the inclusion complex iswater-soluble, thereby increasing the release of poorly soluble drugscomplexed therewith.

Examples of such complexing agents include, but are not limited to,alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin andderivatives of cyclodextrins, such as hydroxyalkylated cyclodextrins.Examples of drugs that can be combined with this type of complexingagent are many and are determined by the fit of the drug within thecomplexing agent, e.g., cyclodextrin. For example, anthracyclines formgood complexes with gamma-cyclodextrin. Complexes of other cyclodextrinsare described in U.S. Pat. No. 4,727,064, which is incorporated hereinby reference in its entirety.

In some embodiments described herein, the complexing agent may be azeolite. Zeolites are minerals having a micro-porous structure. Zeolitesinclude naturally occurring minerals and synthetic compounds, whichgenerally are characterized by an alumino-silicate framework with anopen structure that can accommodate cations, such as Na⁺, K⁺, Ca²⁺, Sr²⁺and Ba²⁺. The cations reside in cavities in the crystal structure andcan be readily exchanged for others in a solution. Zeolites can be ofvarious different types, such as P-type and X-type, and with numerouscounterions, such as sodium and calcium. Additionally, zeolites can beused in combination with ammonium salts, such as hexadecyltrimethylammonium bromide. An example of this is a complex of chloroquin with aP-type zeolite with a sodium counterion and in the presence ofdodecyltrimethylammonium bromide.

In some embodiments, the complexing agent may rely on any type ofmolecular entanglement, as such entanglement is understood in quantumtheory. Any materials that are bound in any way are by definition“entangled” in quantum theory.

In such embodiments, the molecular chains of a complexing agent, such asa polymer, are sufficiently entangled to trap or bind the active,thereby forming the complexate. In instances when the molecular weightis excessive, the ability of the thus formed complexate to release theactive may be hampered or too slow for practical purposes. Thus, theupper limit for molecular weight of the complexing agent is that whichstill provides efficacy for its intended use. The upper limits ofmolecular weight will of course depend on the polymer chosen, as well asthe active, since the behavior of the complexate is dependent to a largedegree on its formative components.

In some embodiments, the complexing agent may promote volatilization.

In addition to the drugs specifically provided above, any of a varietyof pharmaceutical actives, medicaments and bioactive active substancesmay be used in forming the complexates. The following is anon-exhaustive list of exemplary actives.

A wide variety of medicaments, bioactive active substances andpharmaceutical actives may be employed. Examples of useful drugs includeace-inhibitors, antianginal drugs, anti-arrhythmias, anti-asthmatics,anti-cholesterolemics, analgesics, anesthetics, anti-convulsants,anti-depressants, anti-diabetic agents, anti-diarrhea preparations,antidotes, anti-histamines, anti-hypertensive drugs, anti-inflammatoryagents, anti-lipid agents, anti-manics, anti-nauseants, anti-strokeagents, anti-thyroid preparations, anti-tumor drugs, anti-viral agents,acne drugs, alkaloids, amino acid preparations, anti-tussives,anti-uricemic drugs, anti-viral drugs, anabolic preparations, systemicand non-systemic anti-infective agents, anti-neoplastics,anti-parkinsonian agents, anti-rheumatic agents, appetite stimulants,biological response modifiers, blood modifiers, bone metabolismregulators, cardiovascular agents, central nervous system stimulates,cholinesterase inhibitors, contraceptives, decongestants, dietarysupplements, dopamine receptor agonists, endometriosis managementagents, enzymes, erectile dysfunction therapies, fertility agents,gastrointestinal agents, homeopathic remedies, hormones, hypercalcemiaand hypocalcemia management agents, immunomodulators,immunosuppressives, migraine preparations, motion sickness treatments,muscle relaxants, obesity management agents, osteoporosis preparations,oxytocics, parasympatholytics, parasympathomimetics, prostaglandins,psychotherapeutic agents, respiratory agents, sedatives, smokingcessation aids, sympatholytics, tremor preparations, urinary tractagents, vasodilators, laxatives, antacids, ion exchange resins,anti-pyretics, appetite suppressants, expectorants, anti-anxiety agents,anti-ulcer agents, anti-inflammatory substances, coronary dilators,cerebral dilators, peripheral vasodilators, psycho-tropics, stimulants,anti-hypertensive drugs, vasoconstrictors, migraine treatments,antibiotics, tranquilizers, anti-psychotics, anti-tumor drugs,anti-coagulants, anti-thrombotic drugs, hypnotics, anti-emetics,anti-nauseants, anti-convulsants, neuromuscular drugs, hyper- andhypo-glycemic agents, thyroid and anti-thyroid preparations, diuretics,anti-spasmodics, terine relaxants, anti-obesity drugs, erythropoieticdrugs, anti-asthmatics, cough suppressants, mucolytics, DNA and geneticmodifying drugs, and combinations thereof.

Examples of medicating active ingredients contemplated for use in thepresent invention include antacids, H₂-antagonists, and analgesics. Forexample, antacid dosages can be prepared using the ingredients calciumcarbonate alone or in combination with magnesium hydroxide, and/oraluminum hydroxide. Moreover, antacids can be used in combination withH₂-antagonists.

Analgesics include opiates and opiate derivatives, such as oxycodone(available as Oxycontin®), ibuprofen, aspirin, acetaminophen, andcombinations thereof that may optionally include caffeine.

Other preferred drugs for other preferred active ingredients for use inthe present invention include anti-diarrheals such as immodium AD,anti-histamines, anti-tussives, decongestants, vitamins, and breathfresheners. Common drugs used alone or in combination for colds, pain,fever, cough, congestion, runny nose and allergies, such asacetaminophen, chlorpheniramine maleate, dextromethorphan,pseudoephedrine HCl and diphenhydramine may be included in the filmcompositions of the present invention.

Also contemplated for use herein are anxiolytics such as alprazolam(available as Xanax®); anti-psychotics such as clozopin (available asClozaril®) and haloperidol (available as Haldol®); non-steroidalanti-inflammatories (NSAID's) such as dicyclofenacs (available asVoltaren®) and etodolac (available as Lodine®), anti-histamines such asloratadine (available as Claritin®), astemizole (available asHismanal™), nabumetone (available as Relafen®), and Clemastine(available as Tavist®); anti-emetics such as granisetron hydrochloride(available as Kytril®) and nabilone (available as Cesamet™);bronchodilators such as Bentolin®, albuterol sulfate (available asProventil®); anti-depressants such as fluoxetine hydrochloride(available as Prozac®), sertraline hydrochloride (available as Zoloft®),and paroxtine hydrochloride (available as Paxil®); anti-migraines suchas Imigra®, ACE-inhibitors such as enalaprilat (available as Vasotec®),captopril (available as Capoten®) and lisinopril (available asZestril®); anti-Alzheimer's agents, such as nicergoline; andCa^(H)-antagonists such as nifedipine (available as Procardia® andAdalat®), and verapamil hydrochloride (available as Calan®).

Erectile dysfunction therapies include, but are not limited to, drugsfor facilitating blood flow to the penis, and for effecting autonomicnervous activities, such as increasing parasympathetic (cholinergic) anddecreasing sympathetic (adrenersic) activities. Useful non-limitingdrugs include sildenafils, such as Viagra®, tadalafils, such as Cialis®,vardenafils, apomorphines, such as Uprima®, yohimbine hydrochloridessuch as Aphrodyne®, and alprostadils such as Caverject®.

The popular H₂-antagonists which are contemplated for use in the presentinvention include cimetidine, ranitidine hydrochloride, famotidine,nizatidien, ebrotidine, mifentidine, roxatidine, pisatidine andaceroxatidine.

Active antacid ingredients include, but are not limited to, thefollowing: aluminum hydroxide, dihydroxyaluminum aminoacetate,aminoacetic acid, aluminum phosphate, dihydroxyaluminum sodiumcarbonate, bicarbonate, bismuth aluminate, bismuth carbonate, bismuthsubcarbonate, bismuth subgallate, bismuth subnitrate, bismuthsubsilysilate, calcium carbonate, calcium phosphate, citrate ion (acidor salt), amino acetic acid, hydrate magnesium aluminate sulfate,magaldrate, magnesium aluminosilicate, magnesium carbonate, magnesiumglycinate, magnesium hydroxide, magnesium oxide, magnesium trisilicate,milk solids, aluminum mono-ordibasic calcium phosphate, tricalciumphosphate, potassium bicarbonate, sodium tartrate, sodium bicarbonate,magnesium aluminosilicates, tartaric acids and salts.

The pharmaceutically active agents employed in the present invention mayinclude allergens or antigens, such as, but not limited to, plantpollens from grasses, trees, or ragweed; animal danders, which are tinyscales shed from the skin and hair of cats and other furred animals;insects, such as house dust mites, bees, and wasps; and drugs, such aspenicillin.

An anti-oxidant may also be added to the film to prevent the degradationof an active, especially where the active is photosensitive.

Cosmetic active agents may include breath freshening compounds likementhol, other flavors or fragrances, especially those used for oralhygiene, as well as actives used in dental and oral cleansing such asquaternary ammonium bases. The effect of flavors may be enhanced usingflavor enhancers like tartaric acid, citric acid, vanillin, or the like.

In addition, in some embodiments, the complexate may be taste-maskedprior to incorporation into the orally consumable film. A detaileddescription of suitable taste-masking agents and processes fortaste-mask coating is set forth in International Application No.PCT/US02/32594, entitled “Uniform Films For Rapid Dissolve Dosage FormIncorporating Taste-Masking Compositions,” filed Oct. 11, 2002, andwhich published as WO 2003/030883 (claiming priority to U.S. ProvisionalApplication No. 60/414,276 of the same title, filed Sep. 27, 2002), thecontents both of which are incorporated by reference herein in theirentirety.

In any of the embodiments described above, the active may be present inamounts of about 0.01% to about 60% by weight of the complexate. Thecomplexing agent may be present in amounts of about 02% to about 20% byweight of the complexate. The complexing agents described above may havemolecular weights of about 2,000 or more.

Methods of Labeling, Pricing, Marketing and Satisfying Regulations forComplexates

The present invention also is directed to methods of labeling a packagedpharmaceutical product in a manner that is consistent with governmentaldrug regulations. More specifically, the FDA regulates the packagingrequirements for pharmaceutical products in the United States. Productpackaging must include a listing of the active ingredients contained inthe product. Inactive ingredients are listed separately. In accordancewith some embodiments described herein, a packaged pharmaceuticalproduct is provided. The packaged pharmaceutical product includes acomplexate, as described above, an orally consumable film for deliveryof the complexate and a package for containing the orally consumablefilm. Indicia are added to the package, which include a list of activeingredients contained in the orally consumable film and a list ofinactive ingredients contained in the orally consumable film. Thecomplexate is included in the list of active ingredients on the productpackage. In particular, as discussed above, the complexate is the activeingredient itself due to its interaction with an initial active. Oncethe complexing agent interacts with the active to form the complexate,the initial active no longer exists. Therefore, listing the initialactive on the product packaging would not be consistent with FDAregulations. Rather, the active ingredient contained in the film is thecomplexate. Therefore, including the complexate in the list of activeingredients on the indicia is consistent with FDA regulations. Moreover,listing the complexate as such appropriately informs consumers as to theactive ingredient contained in the product.

The present invention also provides methods of adjusting the sales priceof a packaged orally consumable film product. In accordance with suchmethods, an orally consumable film product, which includes apharmaceutical active, is selected. The manufacturing cost of the orallyconsumable film product is known. A complexing agent then is selectedfor use with the pharmaceutical active. Once the particular complexingagent is selected, the cost of purchasing the complexing agent from asupplier is estimated. Additionally, the cost of manufacturing thecomplexate from the selected complexing agent and the pharmaceuticalactive is estimated. Subsequently, a determination is made as to thechange in manufacturing cost of the orally consumable film product basedon these additional cost estimates. Based on this change inmanufacturing cost, the sales price of the product may be adjusted. Forinstance, the cost of purchasing the complexing agent may add asubstantial increase to the cost of manufacturing the product. As such,the sales price per unit of the product may be adjusted upwardly toaccount for the increased cost.

The sales price of the film product also may be adjusted to compensatefor various other costs. For instance, the modification of the productto include a complexate rather than the original active may requireadditional safety and efficacy tests. There are costs associated withconducting such clinical tests, as well as submitting the results of thetests to the requisite regulatory body for approval. The modification ofthe product to include a complexate also may require a labeling changeon the product packaging. The development and production of newpackaging also involves increased costs. The sales price per unit of theproduct may be adjusted based on these additional costs, as well.

Finally, a determination may be made as to whether or not the adjustedsales price of the product is viable in the consumer marketplace. If theadjusted sales price is not viable, all of the manufacturing costs mayneed to be reexamined to determine where costs can be reduced.

Some embodiments of the present invention are directed to methods ofdeveloping a sales price for a packaged orally consumable film productincluding a complexate as the active ingredient. A pharmaceutical activeand complexing agent are selected for forming the complexate to beincluded in the orally consumable film. The cost of purchasing thecomplexing agent from a supplier is estimated, as well as the cost ofpurchasing the pharmaceutical active from a supplier. The cost ofmanufacturing the complexate from the pharmaceutical active and thecomplex ing agent also is estimated, as well as the cost of producingand packaging the orally consumable film including the complexate. Theaggregate cost of safety and efficacy tests performed for thepharmaceutical active and the complexing agent individually isestimated. Then, a determination is made as to whether or not additionalsafety and efficacy tests for the complexate are required. Additionalsafety and efficacy tests may be required by a regulatory body, e.g.,the FDA, to satisfy governmental drug regulations. If such additionaltests are required, the costs associated with conducting such tests andsubmitting the results to the regulatory body are estimated. Finally,all of the cost estimates are added together to develop an estimatedtotal manufacturing cost for the product and then the sales price may beset based on this estimated total manufacturing cost.

The present invention additionally is directed to methods ofdisseminating accurate drug information to consumers of a packagedpharmaceutical product. It is important to provide accurate informationto consumers of pharmaceutical products such that they can make informeddecisions as to whether or not to purchase or consume a particularproduct. For instance, some consumers may have allergic reactions tocertain pharmaceutical actives, and thus, cannot consume productscontaining such actives. In accordance with the methods provided herein,a packaged pharmaceutical product is provided. The product includes acomplexate, as described above, an orally consumable film for deliveryof the complexate and a package for containing the orally consumablefilm. Indicia identifying the complexate as an active ingredientcontained in the packaged pharmaceutical product is provided. Theindicia may be directly associated with the packaged pharmaceuticalproduct. For example, the indicia may be a label on the product or aninsert inside the product packaging. In addition, as an alternative tothe presence of indicia on the package, indicia may also be placed onthe consumable film per se. In some other embodiments, the indicia maybe indirectly associated with the product, such as a print, televisionor internet advertisement, or a product brochure at a physician'soffice. Consumers are exposed to the indicia, by reading the productpackaging, viewing the advertisement, or the like, thereby providingaccurate information as to the active ingredient contained in thepackaged pharmaceutical product.

In some embodiments, the present invention also provides methods ofmarketing an orally consumable film product containing a complexate asthe active ingredient. In accordance therewith, a first pharmaceuticalproduct is identified. This product contains an active that has beenmarketed to consumers as an effective pharmaceutical active. A secondpharmaceutical product is provided, which includes a complexate formedfrom a complexing agent and the same active contained in the firstpharmaceutical product. The product also includes an orally consumablefilm for delivery of the complexate. Consumers are educated that thecomplexate contained in the second pharmaceutical product provides thesame effectiveness as the active contained in the first pharmaceuticalproduct. Such education may be effected via advertisements, such asprint, television and interne advertisements. Educational productinformation also may be supplied to physicians to disseminate to theirpatients. The second pharmaceutical product then may be marketed toconsumers on this basis.

The present invention additionally is directed to methods of satisfyingdrug regulations promulgated by a regulatory body for an orallyconsumable film including a complexate as an active ingredient. Inaccordance with such methods, safety and efficacy test results for thecomplexing agent and safety and efficacy test results for thepharmaceutical active are submitted to the regulatory body, such as theFDA. A determination then is made as to whether or not additional safetyand efficacy tests for the complexate are required by the regulatorybody. If such additional tests are required to satisfy the regulations,these tests are conducted and the results are submitted to theregulatory body to satisfy the drug regulations for the orallyconsumable film product. Additionally, a determination may be made as towhether or not a change in labeling on the package of the film productis required to satisfy drug regulations. In particular, the labeling mayneed to be changed to appropriately identify the complexate as an activeingredient contained in the product. If necessary, the product labelingalso may be changed to satisfy the governmental drug regulations.

EXAMPLES Example 1

Packaged pharmaceutical products of the present invention includingorally consumable films for delivery of a complexate are prepared.

First, the complexate was prepared by placing 16.24 g of highly purifiedcrosslinked polystyrene copolymer in sodium form (commercially availableunder the trade name Tulsion 344 from Thermax), which is the complexingagent, in an 8 ounce screw cap bottle with 125 ml of distilled water andstirring with a magnetic stirrer for 5 minutes. 5.41 g of loperamideHCl, which is the initial active, was added to the bottle and stirredwith a magnetic stirrer for 16 hours with a screw cap on the bottle. Theratio of crosslinked polystyrene copolymer to loperamide HCl was 3:1.The reaction mixture was filtered through a Buchner funnel to separatethe solid material from the liquid. The solid material was washed on thefilter with distilled water. The filtrate was saved. The solid materialcollected on the filter was allowed to air dry.

The solid material then was dried in a 95° C. air oven in an aluminumfoil dish for 2.5 hours to achieve a constant weight of dried material.20.964 g of dried material was recovered. The dried solid material,which is the complexate, was sieved through a 60 mesh screen and storedin a screw cap bottle.

The orally consumable films incorporating the complexate were preparedusing the components listed in Table 1.

TABLE 1 Component Amount in g (wt %) Hydroxyproplymethyl cellulose 4.88g (34.87%) Polyethylene Oxide 2.44 g (17.435%) Polydextrose 2.44 g(17.435%) Sucralose 0.63 g (4.5%) Flavor enhancer¹ 0.07 g (0.5%) Menthol0.14 g (1%) Blue color (FD&C Blue #1) 0.004 g (0.03%) Titanium Dioxide0.14 g (1%) Distilled Water 36 g ¹Magna Sweet 100, available from MafcoWorldwide Corp.

To prepare the orally consumable films, first the menthol, blue color,titanium dioxide and distilled water were added to a Degussa 1100 bowl.A blend of the hydroxypropylmethyl cellulose, polyethylene oxide,polydextrose, sucralose and flavor enhancer was prepared and added tothe bowl. The mixture was stirred for 20 minutes (at 125 rpm, 60%vacuum) using a Degussa Multivac Compact apparatus. The mixture then wasstirred for 20 minutes (at 125 rpm, 90% vacuum), 12 minutes (at 125 rpm,98% vacuum) and 8 minutes (at 125 rpm, 100% vacuum) to form amasterbatch.

In a first batch of orally consumable films, 18.698 g of the masterbatchcontaining 4.298 g solids was added to a small fabricated glass bowl. Asolution of 0.006 g (0.1 wt %) butylated hydroxytoluene (BHT), 0.06 g (1wt %) cooling agent, 0.17 g (3 wt %) menthol and 0.28 g (5 wt %)raspberry flavor was added to the bowl. The solution was prepared usingthe Degussa Multivac Compact apparatus by stirring for 4 minutes (at 125rpm, 100% vacuum). 0.79 g (14.13 wt %) of the complexate, as preparedabove, was added. The solution was stirred for 4 minutes (at 100 rpm,100% vacuum). The solution was cast into film using a K-control coaterwith the micrometer adjustable wedge bar set at 335 microns. The filmwas dried for 13 minutes in an 80° C. air oven. The final film had amoisture content of 4.84%. The film was cut into 1¼ by 1 inch stripswhich each weighed 50 mg.

In a second batch of orally consumable films, 18.698 g of themasterbatch containing 4.298 g solids was added to a small fabricatedglass bowl. A solution of 0.006 g (0.1 wt %) butylated hydroxytoluene(BHT), 0.06 g (1 wt %) cooling agent and 0.45 g (8 wt %) peppermintflavor was added to the bowl. The solution was prepared using theDegussa Multivac Compact apparatus by stirring for 4 minutes (at 125rpm, 100% vacuum). 0.79 g (14.13 wt %) of the complexate, as preparedabove, was added. The solution was stirred for 4 minutes (at 100 rpm,100% vacuum). The solution was cast into film an dried as described forthe first batch above. The final film had a moisture content of 2.94%.The film was cut into 1¼ by 1 inch strips which each weighed 51-57 mg.

The orally consumable films prepared in the first and second batchesabove include a complexate and can be packaged in accordance with thepresent invention. For example, the orally consumable films areindividually packaged in pouches. Each pouch has top and bottom layers.Once the orally consumable film is positioned therein, the top andbottom layers of the pouch are sealed along the perimeter by heatsealing. The outside of the pouch, on the bottom and/or top layer,includes indicia listing the active ingredients contained in the orallyconsumable film housed therein. The complexate contained in the film isincluded in this listing of active ingredients. The complexate itself islisted as a chemical entity in this listing of active ingredients,rather than the initial active, loperamide. Therefore, each individualpouch provides the consumer with appropriate information as to theactive ingredients contained in the orally consumable film.

Example 2

Packaged pharmaceutical products of the present invention includingorally consumable films for delivery of a complexate are prepared.

First, the complexate was prepared by placing 4 g of highly purifiedcrosslinked polystyrene copolymer in sodium form (commercially availableunder the trade name Tulsion 344), which is the complexing agent, in a50 ml beaker with 16 g of distilled water and stirring with a magneticstirrer for 5 minutes. 2 g of dextromethorphan hydrobromide, which isthe initial active, was added to the beaker and allowed to stir with themagnetic stirrer for about 3 hours and 45 minutes. The reaction mixturewas allowed to settle and the water portion was decanted. Additionalwater was added to the beaker and allowed to settle. The water portionwas again removed by decanting. The solid reaction product, which is thecomplexate, was dried for 15 hours in a 30° C. air oven.

The orally consumable films incorporating the complexate were preparedusing the components listed in Table 2.

TABLE 2 Amount in g (wt %) Component (unless indicated otherwise)Hydroxypropylmethyl cellulose 1.76 g (23.9%) Hydroxypropyl cellulose0.59 g (7.97%) Sucralose 0.18 g (2.5%) Flavor enhancer¹ 0.04 g (0.5%)Complexate 4.15 g (56.23%) Flavor enhancer² 0.05 g (0.65%) Masking Agent0.04 g (0.5%) Bubblegum flavor 0.37 g (5%) Peppermint flavor 0.18 g(2.5%) Polydimethylsiloxane Emulsion 0.02 g (0.25%) Distilled Water13.71 g Red Food Coloring 3 drops ¹Magna Sweet 100, available from MafcoWorldwide Corp. ²Prosweet Flavor N&A K, available from Virginia Dare

To prepare the orally consumable films, first the polydimethylsiloxaneemulsion, distilled water and red food coloring were added to a Degussa1100 bowl equipped with an addition port. Then the mixture was stirredfor 4 minutes (at 100 rpm, 0% vacuum) using a Degussa Multivac Compactapparatus. A blend of the hydroxypropylmethyl cellulose, hydroxypropylcellulose, sucralose and the first flavor enhancer was added to themixture. The mixture was stirred for 20 minutes (at 100 rpm, 0% vacuum),4 minutes (at 100 rpm, 90% vacuum), 4 minutes (at 100 rpm, 100% vacuum)and then 4 minutes (at 100 rpm, 100% vacuum). The complexate, preparedas described above, was added. The mixture then was stirred for 4minutes (at 100 rpm, 30% vacuum). 3.51 g of water was added to yield 30%solids and the second flavor enhancer, masking agent, bubblegum flavorand peppermint flavor were added.

The solution was cast into film using a K-control coater with the a 350micron smooth bar onto release paper. The film was dried for 8 minutesin a 90° C. air oven. The final film had a moisture content of 7.02%.

The film prepared above can be divided into individual orally consumablefilm dosage units. The orally consumable films include a complexate andcan be packaged in accordance with the present invention. For example,the orally consumable films can be packaged into pouches, as describedin Example 1. Alternatively, a plurality of the orally consumable filmscan be packaged into a cassette. More specifically, the orallyconsumable films are stacked inside a cassette. Indicia are located onthe outer surface of the cassette, which includes a listing of activeingredients included in the orally consumable films housed therein. Thecomplexate itself is listed as a chemical entity in this listing ofactive ingredients, rather than the initial active, dextromethorphan.Therefore, the package appropriately indicates to consumers the activeingredients contained in the product.

Example 3

Packaged pharmaceutical products of the present invention includingorally consumable films for delivery of a complexate are prepared.

First, the complexate was prepared by placing 13.5 g of highly purifiedcrosslinked polystyrene copolymer in sodium form (commercially availableunder the trade name Tulsion 344), which is the complexing agent, in an8 ounce screw cap bottle with 100 ml of distilled water and stirringwith a magnetic stirrer for 5 minutes. 5.4 g of cetirizinedihydrochloride (commercially available as Zyrtec from Pfizer), which isthe initial active, was added to the bottle and allowed to stir with themagnetic stirrer for 16 hours with a screw cap on the bottle. The ratioof the highly purified crosslinked polystyrene copolymer to cetirizinedihydrochloride was 2.5 to 1. The reaction mixture was filtered througha Buchner funnel to separate the solid material from the liquid. Thesolid material was washed on the filter with distilled water. Thefiltrate was saved.

The solid material collected on the filter was dried in a 95° C. airoven in an aluminum foil dish for 2 hours to achieve a constant weightof dried material. 17.06 g of dried material was recovered. The driedsolid material, which is the complexate, was sieved through a 60 meshscreen and stored in a screw cap bottle.

The orally consumable films incorporating the complexate were preparedusing the components listed in Table 3.

TABLE 3 Component Amount in g (wt %) Polyethylene Oxide 2.4 g (30%) CornStarch 0.8 g (10%) Polydextrose 0.8 g (10%) Sucralose 0.32 g (4%) Flavorenhancer¹ 0.04 g (0.5%) Complexate 2.55 g (31.82%) ButylatedHydroxytoluene (BHT) 0.008 g (0.1%) Cooling agent 0.08 g (1%) Juicyfruit flavor 0.092 g (1.15%) Grape flavor 0.83 g (10.35%) Menthol 0.08 g(1%) Red color (FD&C Red #40) 0.003 g (0.04%) Blue color (FD&C Blue #1)0.003 g (0.04%) Distilled Water 12 g ¹Magna Sweet 100, available fromMafco Worldwide Corp.

To prepare the orally consumable films, the menthol, red and blue colorsand water were added to a small fabricated glass bowl. The a mixture ofpolyethylene oxide, corn starch, polydextrose, sucralose and the flavorenhancer was added to the bowl. The solution was prepared using aDegussa Multivac Compact apparatus by stirring for 20 minutes (at 100rpm, 60% vacuum), 20 minutes (at 100 rpm, 90% vacuum), 12 minutes (at100 rpm, 98% vacuum) and then 8 minutes (at 100 rpm, 100% vacuum). Waterwas added to the solution to make up for water loss. Then the solutionwas stirred for 4 minutes (at 100 rpm, 100% vacuum). A solution of BHT,cooling agent, juicy fruit and grape flavors was added and then stirredfor an 4 additional minutes (at 100 rpm, 100% vacuum). The complexatethen was added to the solution.

The solution was cast into film using a K-control coater with themicrometer adjustable wedge bar set at 500 microns. The film was driedfor 14 minutes in an 80° C. air oven. The final film had a moisturecontent of 2.49%. The film was cut into 1¼ by 1 inch strips which eachweighed 110 mg.

These orally consumable film strips include a complexate and can bepackaged in accordance with the present invention. For example, theorally consumable films can be packaged into pouches, as described inExample 1, or a plurality of the films can be stacked in a cassette, asdescribed in Example 2. Indicia are located on the outer surface of thepouch or cassette, which lists the complexate as an active ingredientincluded in the films contained in the package, thereby appropriatelyindicating to consumers the active ingredients contained in the product.

Example 4

Packaged pharmaceutical products of the present invention includingorally consumable films for delivery of a complexate are prepared.

First, the complexate is prepared including the components listed inTable 4.

TABLE 4 Component Amount (g) Naproxen 2.5 g Cyclodextrin¹ 10.0 g Water100 g ¹Cavamax W7, available from Wacker Chemie AG

The naproxen and cyclodextrin are added to water and stirred with amagnetic stirrer for 4 hours at 60° C. The solution is then evaporatedusing a rotary distillation unit under vacuum. The remaining powder isthen dried to a constant weight using a mechanical oven at 80° C. toform the complexate.

The orally consumable films incorporating the complexate are preparedusing the components listed in Table 5.

TABLE 5 Component Amount in g (wt %) Hydroxypropylmethyl cellulose 0.95g (29.62%) Polyethylene oxide 0.47 g (14.8%) Polydextrose 0.47 g (14.8%)Sucralose 0.06 g (2%) Flavor enhancer¹ 0.02 g (0.5%) Menthol 0.03 g (1%)Blue color (blue #1) 0.001 g (0.030%) Titanium dioxide 0.03 g (1%)Complexate 1 g (31.25%) Raspberry Flavor 0.16 g (5%) ¹Magna Sweet 100,available from Mafco Worldwide Corp.

To prepare the orally consumable films, 7.5 g of water is heated to 80°C. in a Degussa bowl. Hydroxypropylmethyl cellulose, polyethylene oxide,polydextrose, sucralose, flavor enhancer, menthol, blue color andtitanium dioxide are added to the bowl and stirred for 2 hours using aDegussa Multivac Compact apparatus. The temperature is allowed to coolover the 2 hour period. 1 hour of the mixing is at room temperature.Vacuum is gradually added with mixing over 30 minutes until all air isremoved. The raspberry flavor is added and vacuum again added (28 inchesHg) for 12 minutes. The complexate then is added and vacuum (28 inchesHg) with stirring to remove any air. The solution/suspension is coatedusing a K-control coater with a micrometer setting of 530 microns ontorelease paper. The film is dried for 8 minutes at 80° C. in an air oven.The film is cut into 1 inch by 1¼ inch strips, which weigh 80 mg.

These individual orally consumable film strips include a complexate andcan be packaged in accordance with the present invention. For example,the orally consumable films can be packaged into pouches, as describedin Example 1, or a plurality of the films can be stacked in a cassette,as described in Example 2. Indicia are located on the outer surface ofthe pouch or cassette, which lists the complexate as an activeingredient included in the films contained in the package, therebyappropriately indicating to consumers the active ingredients containedin the product.

What is claimed is:
 1. A packaged pharmaceutical product comprising: acomplexate comprising a complexing agent and an active; an orallyconsumable film for delivery of said complexate; and a package forcontaining said orally consumable film, said package comprising indiciaassociated therewith identifying said complexate as a regulatoryapprovable chemical entity.
 2. The pharmaceutical product of claim 1,wherein said active comprises a charged active.
 3. The pharmaceuticalproduct of claim 1, wherein said complexing agent comprises an anioniccomplexing agent.
 4. The pharmaceutical product of claim 1, wherein saidcomplexing agent comprises a cationic complexing agent.
 5. Thepharmaceutical product of claim 2, wherein said charged active comprisesan anionic active.
 6. The pharmaceutical product of claim 2, whereinsaid charged active comprises a cationic active.
 7. The pharmaceuticalproduct of claim 1, wherein said complexing agent comprises amulti-valent salt.
 8. The pharmaceutical product of claim 1, whereinsaid complexing agent comprises a zeolite.
 9. The pharmaceutical productof claim 1, wherein said complexing agent comprises an ion exchangeresin.
 10. The pharmaceutical product of claim 1, wherein saidcomplexing agent comprises a caged molecule.
 11. The pharmaceuticalproduct of claim 10, wherein said caged molecule comprises acyclodextrin.
 12. The pharmaceutical product of claim 1, wherein saidpackage comprises a pouch.
 13. The pharmaceutical product of claim 1,wherein said package comprises a box.
 14. The pharmaceutical product ofclaim 1, wherein said package comprises a cassette.
 15. Thepharmaceutical product of claim 1, wherein said indicia comprises alabel.
 16. The pharmaceutical product of claim 15, wherein said label islocated on said package.
 17. The pharmaceutical product of claim 15,wherein said label is affixed to said package.
 18. The pharmaceuticalproduct of claim 1, wherein said indicia comprises a list of activeingredients.
 19. The pharmaceutical product of claim 1, wherein saidindicia identifies said complexate as an active ingredient.
 20. A methodof labeling a packaged pharmaceutical product in a manner that isconsistent with governmental drug regulations, comprising the steps of:(a) providing a packaged pharmaceutical product comprising: (i) acomplexate comprising a complexing agent and a pharmaceutical active;(ii) an orally consumable film for delivery of said complexate; and(iii) a package for containing said orally consumable film; (b) addingindicia to said package, said indicia comprising a list of activeingredients contained in said orally consumable film and a list ofinactive ingredients contained in said orally consumable film, whereinsaid complexate is listed as an active ingredient.
 21. The method ofclaim 20, wherein said indicia added to said package in step (b)identifies said complexate as a regulatory approvable chemical entity.22. A method of adjusting the sales price of a packaged orallyconsumable film product, comprising the steps of: (a) selecting anorally consumable film product comprising a pharmaceutical active, saidproduct having a manufacturing cost; (b) selecting a complexing agentfor use with the pharmaceutical active to form a complexate; (c)estimating the cost of purchasing the complexing agent from a supplier;(d) estimating the cost of manufacturing the complexate; (e) determiningthe change in manufacturing cost of the orally consumable film productbased on the additional cost estimates of steps (c) and (d); and (f)adjusting the sales price of the product based on the change inmanufacturing cost.
 23. The method of claim 22, further comprising thesteps of: (g) determining whether additional safety and efficacy testsassociated with the complexate are required; and (h) estimating the costassociated with the additional safety and efficacy tests, wherein step(e) further comprises determining the change in manufacturing cost ofthe orally consumable film product based on the additional cost estimateof step (h).
 24. The method of claim 22, further comprising the stepsof: (i) determining whether a change in labeling on the product packageis required to list the complexate as an active ingredient; and (j)estimating the cost associated with the labeling change, wherein step(e) further comprises determining the change in manufacturing cost ofthe orally consumable film product based on the additional cost estimateof step (j).
 25. The method of claim 22, further comprising the step ofdetermining whether the adjusted sales price of step (f) is viable inthe marketplace.
 26. A method of disseminating accurate drug informationto consumers of a packaged pharmaceutical product, comprising the stepsof: (a) providing a packaged pharmaceutical product comprising: (i) acomplexate comprising a complexing agent and a pharmaceutical active;(ii) an orally consumable film for delivery of said complexate; and(iii) a package for containing said orally consumable film; (b)providing indicia identifying the complexate as an active ingredientcontained in the packaged pharmaceutical product; and (c) exposingconsumers to the indicia, thereby providing accurate information as tothe active ingredient contained in the packaged pharmaceutical product.27. A method of marketing an orally consumable film product containing acomplexate as the active ingredient to consumers, comprising the stepsof: (a) identifying a first pharmaceutical product containing an activethat has been marketed to consumers as an effective pharmaceuticalproduct; (b) providing a second pharmaceutical product comprising: (i) acomplexate comprising a complexing agent and the active of step (a); and(ii) an orally consumable film for delivery of the complexate; (c)educating consumers that the complexate contained in the secondpharmaceutical product provides the same effectiveness as the activecontained in the first pharmaceutical product; and (d) marketing thesecond pharmaceutical product to consumers.
 28. A method of developing asales price for a packaged orally consumable film product including acomplexate as the active ingredient, comprising the steps of: (a)selecting a pharmaceutical active and complexing agent to form thecomplexate included in the orally consumable film; (b) estimating thecost of purchasing the complexing agent from a supplier; (c) estimatingthe cost of purchasing the pharmaceutical active from a supplier; (d)estimating the cost of manufacturing the complexate from thepharmaceutical active and the complexing agent; (e) estimating the costof producing and packaging the orally consumable film including thecomplexate; (f) estimating the aggregate cost of safety and efficacytests performed for the pharmaceutical active and the complexing agentindividually; (g) determining whether additional safety and efficacytests for the complexate are required; (h) estimating the costassociated with the additional safety and efficacy tests of step (g);(i) adding the costs of the preceding steps to develop an estimatedtotal manufacturing cost; and (j) setting the sales price based on theestimated total manufacturing cost of the packaged orally consumablefilm product.
 29. A method of satisfying drug regulations promulgated bya regulatory body for an orally consumable film comprising a complexateas the active ingredient, said complexate comprising a complexing agentand a pharmaceutical active, comprising the steps of: (a) submittingsafety and efficacy test results for the complexing agent and safety andefficacy test results for the pharmaceutical active to the regulatorybody; (b) determining whether additional safety and efficacy tests forthe complexate are required by the regulatory body; (c) conducting thesafety and efficacy tests of step (b); and (d) submitting the results ofthe safety and efficacy tests of step (c) to the regulatory body tosatisfy the drug regulations of the regulatory body for the orallyconsumable film product.
 30. The method of claim 29, further comprisingthe step of determining whether a change in labeling on the package forthe orally consumable film is required by the regulatory body to listthe complexate as an active ingredient.